I checked with a few others and they reported the same problem too. These parts out of the raw sheet are too thin to match the plans. The rudder had the opposite problem. It had to be sanded down quite a bit to match the trailing edge of the rudder so that throws out your other thought. Some used hinge covers to cover up the problem on the elevators. Anyway, I just thought I would pass along what a few of us ran into on this kit. They all came off the same laser cut sheet. Thanks for your response.
ORIGINAL: Bax
We've not had any complaints to speak of with this kit in this area, so I don't have an answer. Another die-cut sheet would be identical to what you already have.
Of course, one thing I didn't think of at the time of my original post is that when you cut the bevel into the elevator leading edge, you may find that it lines up nicely if you project the top and bottom surfaces into the stabilzer. There may only be an apparent discrepancy in the parts' sizes.